768855061 has 4 divisors (see below), whose sum is σ = 827997772. Its totient is φ = 709712352.

The previous prime is 768855013. The next prime is 768855071. The reversal of 768855061 is 160558867.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44222500 + 724632561 = 6650^2 + 26919^2 .

It is a cyclic number.

It is not a de Polignac number, because 768855061 - 2²⁹ = 231984149 is a prime.

It is a super-2 number, since 2×768855061² = 1182276209650627442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768855011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29571336 + ... + 29571361.

It is an arithmetic number, because the mean of its divisors is an integer number (206999443).

Almost surely, 2^768855061 is an apocalyptic number.

It is an amenable number.

768855061 is a deficient number, since it is larger than the sum of its proper divisors (59142711).

768855061 is a wasteful number, since it uses less digits than its factorization.

768855061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59142710.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 768855061 is about 27728.2358075663. The cubic root of 768855061 is about 916.1111292777. Note that the first 4 decimals are identical.

The spelling of 768855061 in words is "seven hundred sixty-eight million, eight hundred fifty-five thousand, sixty-one".